In most role-playing games, each of the characters have a weakness to offset their skills, like heights, fire or snakes. But not Dwayne Johnson. In the new trailer for Jumanji: Welcome to the Jungle, he discovers his avatar has no weaknesses, which sounds about right. The same can't be said about poor Kevin Hart, however; he learns the hard way that his Achilles' heel is ... cake.

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Unfortunately, he puts that to the test, and suffers the explosive consequences.

The sequel to the 1995 fantasy adventure, Jumanji follows four teens who are transported into the dangerous world of an old video game they discover while cleaning the basement of their high school. There they find themselves transformed into avatars decidedly unlike their real-world counterparts.

In the brand new adventure Jumanji: Welcome to the Jungle, the tables are turned as four teenagers in detention are sucked into the world of Jumanji.

When they discover an old video game console with a game they’ve never heard of, they are immediately thrust into the game’s jungle setting, into the bodies of their avatars, played by Dwayne Johnson, Jack Black, Kevin Hart, and Karen Gillan. What they discover is that you don’t just play Jumanji – Jumanji plays you. They’ll have to go on the most dangerous adventure of their lives, or they’ll be stuck in the game forever …

Arriving Dec. 20, director Jake Kasdan’s Jumanji: Welcome to the Jungle stars Dwayne Johnson as Dr. Smolder Bravestone, Kevin Hart as Moose Finbarr, Jack Black as Professor Shelly Oberon, Karen Gillan as Ruby Roadhouse, and Nick Jonas as Alex.